158533348421 has 16 divisors (see below), whose sum is σ = 182911592448. Its totient is φ = 134593872000.

The previous prime is 158533348397. The next prime is 158533348439. The reversal of 158533348421 is 124843335851.

It is not a de Polignac number, because 158533348421 - 2⁶ = 158533348357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158533348471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57071 + ... + 565971.

It is an arithmetic number, because the mean of its divisors is an integer number (11431974528).

Almost surely, 2^158533348421 is an apocalyptic number.

It is an amenable number.

158533348421 is a deficient number, since it is larger than the sum of its proper divisors (24378244027).

158533348421 is a wasteful number, since it uses less digits than its factorization.

158533348421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509332.

The product of its digits is 1382400, while the sum is 47.

The spelling of 158533348421 in words is "one hundred fifty-eight billion, five hundred thirty-three million, three hundred forty-eight thousand, four hundred twenty-one".